Lecture 18: Linear Momentum and energy
Objectives: In this lecture, students will learn to- analyze elastic collisions
- apply conservation of linear momentum and conservation of energy to multi-step problems
- define center of mass
- relate center of mass motion to external forces
- formulate the principal mechanism of rocket propulsion as an example of momentum conservation
- Powerpoint: lec18.pptx
- Pdf (recommended for printing): lec18.pdf
| Energy and momentum - multi-step problems | Video.mp4 | with captions |
| Elastic collisions | Video.mp4 | with captions |
| Newton's cradle Rosencrantz and Guildenstern are dead | Video | |
| Center of mass - definition | Video.mp4 | with captions |
| Center of mass motion | Video.mp4 | with captions |
| Demo: Rocket Tricycle | rocketcart.mp4 |
Homework assignment: HW #18